Rounding and channeling machine



June 7, 1932. BOURGEGls 1,861,654

ROUNDING AND CHANNELING MACHINE Filed Sept. 19, 1930 Fig.1

Patented June 7, 1932 STATES MACHINERY CORPORATION, OF PATER-SON,

JERSEY NEW JERSEY, A CORPQli-ATION OF NEW ROUNDING AND CHANNELINGMACHINE Application filed. September 19, 1930. Serial No. 483,034.

This invention relates to improvements in machines for operating uponthe soles of shoes and is herein illustrated as embodied in a roundingand channeling machine of the 5 type disclosed in United States LettersPat-- ent No. 600,883, granted March 22, 1898, upon application of iv.C. Meyer and Z. T. French. Although not limited in its applicationthereto, the invention is herein set forth with particular reference tothe rounding and channeling of soles which have been applied to shoes inthe process of repairing the shoes. The invention, moreover, is notnecessarily limited to machines for performing both a rounding andchanneling operations nor to machines of the particular type disclosedin the patent referred to.

Machines of the type referred to are provided with a reciprocatingtrimming knife, a feed plate arranged to engage the upper or ex posedface of the welt of a welt shoe and adapted to serve also as a cuttingblock for the knife, and a work gage fixed to the feed plate forengaging the previously trimmed edge of the welt to guide the shoe as itis being fed pastthe knife. The illustrated machine, however. is furtherprovided with means adapting it for operation also upon the soles ofshoes of types having no previously trimmed welt or its equivalent to beengaged by the edge gage, such, for example. as McKay-sewed shoes. turnshoes, and shoes in which adhesive is employed as the sole attachingmeans. For this purpose, in the illustrated machine, a second gage isprovided for guiding a shoe by engagement with the,

shoe upper and the two gages are mounted for movement to and fromoperative position. Moreover. the two gages are so connected that wheneither gage is moved into operative position the other gage will bemoved into an inoperative position. Thus, when a welt shoe is to beoperated upon the welt edge gage will be operatively positioned whilethe upper gage will be inoperatively positioned. 0n the other hand whena McKay-sewed shoe or turn shoe is to be operated upon the upper gagewill be operatively positioned, while the welt edge gage will be movedinto an out-of-the-way position. A

machine having welt and upper gages constructed and arranged as abovedescribed is disclosed in a co-pending application Serial No. 447,701,filed April 26, 1930, upon the joint application of O. L. Sherman andthe present inventor. In the machine of the application just referred tothe welt edge gage when operatively positioned is located between thefeed plate and the trimming knife and the trimming knife is movablethrough an opening in the edge gage into engagement with the rear faceof the feed plate, this construction enabling the knife to operateeffectively and without specialadiustment for the particular type ofwork which is being open ated upon, although the knife does not have atrue chopping action when the edge gage is operatively positionedand'the machine is operating upon the sol-es of welt shoes.

One object of the present invention is to enable thereciprocating-trimming knife of a machine of the above type to cut witha chopping action when trimming the soles of welt shoes, as well as whentrimming the soles of McKay-sewed shoes, turn shoes, or shoes withadhesively secured soles, in order to facilitate the making of a cleancut when operating upon welt shoes having outsoles cut from inferior orspongy stock.

To the accomplishment of this result one feature of the presentinvention consists in the combination, in a machine for trimming thesoles of shoes. of a cutting block adapted for use in trimming the solesof welt shoes, a second cutting block movable to and from a positionwherein its cutting surface is disposed in a different plane from thatof the first cutting block for use in trimming the soles of shoes otherthan welt shoes, and a movable trimming knife adaptable for cooperationwith either of said cutting blocks to trim a shoe sole by a choppingaction. In the illustrated machine one cutting block is carried by thefeed plate while the other cutting block is carried by an edge gagewhich is movable to and from an operative position between theknife andthe feed plate, and provision is made for adjusting the range ofmovement of the trimming knife to shift the forward limit of the knifestroke from one position in which the knife is adapted to out againstthe cutting block carried by the feed plate to another position in whichthe knife is adapted to out against the cutting block carried by theedge gage. Thus, by adjusting the range of movement of the knifeaccording to the class of work to be operated upon, and by appropriatelyadjusting the edge and upper gages, the present machine may be readilyadapted for use in operating upon either welt shoes or shoes in whichthe tread sole is directly secured to the upper. The illustrated meansfor adjusting the range of movement of the trimming or rounding knifecomprises an eccentric pivotal connection between an oscillatory armwhich carries the knife and amember which actuates the knife arm. Theeccentric connection herein shown is adapted to be readily turned toeffect the desired adjustment, means including a spring-pressed detentbeing provided for determining the proper positions of adjustment of theeccentric connection and for locking it in said positions.

The invention will be explained with reference to the accompanyingdrawing, in which Fig. 1 is a view, in side elevation, of so much of arounding and channeling machine as is necessary. to illustrate theapplication of the present invention thereto, the machine being shown inoperation upon the sole of a welt shoe;

Fig. 2 is a view in front elevation of the parts shown in Fig. 1; Fig. 3is a side elevational view of the machine as it appears when operatingupon the sole of a McKay-sewed shoe;

Fig. 4 is a detailed sectional view on the line IV-IV of Fig. 1; and

Fig. 5 is a detailed perspective view of the edge gage used for guidinga welt shoe.

In the drawing, the invention is shown as embodied in a rounding andchanneling machine of the general type disclosed in Letters Patent No.600,883, hereinbefore referred to. The illustrated machine is providedwith a four-motion feed plate arranged to engage the upper surface ofthe welt, in a welt shoe (or the corresponding portion of the projectingsole margin of a shoe in which no welt is employed such, for example, asa McKay-sewed shoe or a turn shoe) a sole support in the form of ananti-friction roll 12 which is movable back and forth to cooperate withthe feed plate 10 in feeding the work; a fixed work support or creaseguide 14 shaped to enter the usual crease between the welt, or solemargin and the upper of a shoe; a vibratory rounding knife 16 which ismovable toward the feed plate to trim the tread sole of the shoe; and achannel knife 18 which is movable with the sole support; The roundingknife 16 is secured to the lower end of an arm 20 the upper end of whichis mounted for oscillatory and axial sliding movement upon a fixed rod22. The knife arm 20 is oscillated or vibrated by means of an eccentric24 on the main shaft 26 of the machine, the eccentric being connected byan eccentric strap 28 with the arm 20. Except as hereinafter otherwisedescribed, the above-mentioned parts are substantially the same inconstruction and have substantially the same mode of operation ascorresponding parts disclosed in said patent and accordingly it will beunnecessary to describe these parts further herein.

The illustrated machine is rendered adaptable for use in operating bothupon welt shoes and upon McKay-sewed shoes (or other shoes in which thetread sole is directly secured to the upper) for the purpose ofrounding, or rounding and channeling, soles which have been applied tothe shoes in the process of repairing them, by the provision of an edgegage 30 which is movable to and from position for use in guiding a weltshoe and an upper gage 82 which is movable to and from position for usein operating upon a McKaysewed shoe or other shoe in which no welt orequivalent shoe bottom element is employed. The edge gage 30, as bestshown in Fig. 5, comprises a plate carrying at one end a cutting block34. As shown, the cutting block 3st consists of a flat piece of hardenedmetal which is dovetailed to the arm 30, as indicated at 36 5), andwhich is shaped to provide an edge gage face 88 and a flat surfaceadapted to be engaged by the rounding knife 16 and to perform thefunction of a cutting block to insure the making of a clean cut by theknife. Except for the above-described details of construction of theedge gage 30, this gage, together with the upper gage 32, and the meanswhereby these gages are connected and mounted, are substantially thesame as corresponding parts disclosed and claimed in the co-pendingapplication Serial No. 447,701, hereinbefore referred to. In orderbetter to facilitate on understanding of the present invention, however,the construction and arrangement of these parts will be brieflydescribed herein.

The upper gage 32 comprises a roll 40 the periphery of which is shapedtransversely to conform approximately to the heightwise curvature of theupper of a shoe in the vicinity of the crease between the upper and thesole. The gage roll 40 is mounted to turn idly at one end of an arm l2the opposite end of which is rigidly secured to the front end of arocker stud 44 to the rear end of which is rigidly secured the edge gagearm 30. The rocker stud 44 is mounted to turn in a suitable bearingformed in the upper portion of the feed plate 10. The gages 30 and 32are arranged respectively behind and in front of the feed plate 10 andthey proj ect radially from the rocker stud 44 at such angles withrespect to one another that when the edge gage is operatively positionedthe upper gage will be located in an out-ofthe-way position and when theupper gage 40 is operatively positioned the edge gage 30 will be locatedin an out-of-the-way position. Means is provided comprising a latch 46for locking the gages 30 and 32 in both operative and inoperativepositions. For this purpose the latch 46 is pivotally mounted at 48 andis urged yieldingly by means of a spring 50 toward a position in whichthe lower end of the latch engages with one or the other of twoperipheral notches 52 and 54 in a disk 56 rigidly secured to the frontportion of the rocker stud 44. The notches 52 and 54 are so disposedradially in the periphery of the disk 56 that when the latch engages thenotch 52 the edge gage 30 will be operatively positioned and the uppergage 40 inoperatively positioned and when the latch operatively engagesthe notch 54 the upper gage 40 will be operatively positioned and theedge gage 3O inoperatively positioned.

lVhen operating upon McKay-sewed shoes, turn shoes, or other shoes inwhich the tread sole is directly secured to the upper, the roundingknife 16 0f the illustrated machine is adapted to co-operate with acutting block 60 (Fig. 1) in the rear face of the feed plate 10 in thesame manner as the rounding knife of the machine disclosed in theco-pende ing application herein referred to. When operating upon thesole of a welt shoe, however, the rounding knife of the illustratedmachine is adapted to cooperate with the cutting block 34 carried by thewelt edge gage arm 30. To adapt the rounding knife of the illustratedmachine to co-operate as above described with the cutting block 60 whenoperating upon McKay work and with the cutting block 34 when operatingupon welt work, provision is made whereby the operator may adjust therange of movement of the rounding knife in accordance with the characterof the work upon which the machine is to operate. As herein shown, thisadjustment is effected by turning an eccentric bushing 64 whichconstitutes part of the pivotal connection between the knife arm 20 andthe eccentric strap 28 which actuates the knife arm.

As best shown in Fig. 4, the eccentric bushing 64 surrounds a stud 66which is fixedly secured to the knife carrier arm 20, the arm 20 beingclamped against a shoulder 68 on the stud 66 by means of a nut 70 on thestud.

The eccentric bushing 64 is confined between.

the knife carrier arm 20 and a head'72 on the stud 66 and is adapted tobe turned on the stud by means of a knurled enlargement or knob 74 whichis counterbored to receive the head 72.

For the purpose of shifting the range of movement of the knife 16 theeccentric bushing 64 is adapted to be turned 180 between two positionsdetermined by the engagement of aspring detent 76 with one or the otherof two sockets 78 and 80 in the bushing 64. As shown, the detent 76 ismounted in a socket 82 in the eccentric strap 28 and the inner end ofthe detent 7 6 is rounded to permit the detent to be readilydisengagedfrom the sockets in the bushing 64 when the bushing is turned.

lVhen the detent 76 is in engagement with the socket- 7 8 in the bushing64 and the gages 30 and 32 are positioned as shown in Fig. 1, themachine is adapted to operate upon the soles of welt shoes, the knife 16being then adapted to out against the cutting block 34 carried by theedge gage 30. To adapt the machine for operation upon the soles ofMcKay-sewed shoes or shoes of other types in which the tread sole isdirectly secured to the upper, it is only necessary to turn theeccentric bushing 180 until the detent '76 engages within the socket 80in the bushingand to rotate the gages 30 and 32 from the positions shownin Fig. 1 to the positions shown in Fig.3. This adjustment of theeccentric bushing shifts therange of movement of the knife 16 so thatwhen the knife isat the forward limit of its stroke it will out againstthe cutting block 60 carried by the feed clamp 10, the edge gage 30having been withdrawn from operative position between the feed clamp 10'and the knife. With the above construction it will be seen that theknife will cut with a true chopping action whether the machine isadjusted for trimming soles of welt shoes or for trimming the soles ofother types of shoes, such as McKaysewed shoes. Such a cutting actionwill in-' sure the making of a clean cut evenif spongy stock, or stockwhich is otherwise of inferior quality, is being operated upon.

Having described my invention, what I claim as new and desire to secureby Letters Patent of the United States is r 1. In a machine for trimmingthe soles of shoes, in combination. a movable trimming knife, a cuttingblock, and a second cutting block movable to and from aposition betweenthe first cutting block and the knife to co-operate with said knife inlieu of the first cutting block, said knife being adjustable to outagainst one cutting block when operating upon one class of work and toout against the other cutting block when operating upon another class ofwork.

2. In a machine for trimming the solesof shoes, in combination, areciprocating trim-' ming knife, a cutting block, and a work gagemovable to and from operative position between the knife and the cuttingblock, said knife being constructed and arranged to out against the.cutting block when operatmg upon one class of work and tocut against asurface of the work gage when operating uponanother class of work.

3. In a sole rounding machine, in combina tion', afeed plate having asurface adapted to serve as a cutting block, an edge gage movable to andfrom operative position and having a surface adapted to serve as acutting block, and a reciprocating rounding knife constructed andarranged to out against the edge gage in rounding the soles of weltshoes and to out against the feed plate in rounding the soles of shoeswithout welts.

, 4. In a machine for trimming the soles of shoes. the combination witha reciprocating trimming knife. of a cutting block. and a work gagemovable to and from an operative position between the knife and thecutting block, of means for adjusting the forward limit of movement ofthe knife from one position in which the knife is adapted to out againstsaid cutting block while said gage isinoperatively positioned to anotherposition in which the knife is adapted to cut against a surface on saidgage while the latter is operatively positioned.

5. In a machine for trimming the soles of shoes, in combination, areciprocating trimming knife, a work support having a cutting blocksurface for co-operating with the knife, a work gage movable to and froman operative position between the knife and the work support and havinga cutting block surface for co-operating with the knife, and means forshifting the range of movement of the knife from one locality in whichthe forward limit of the knife stroke is in the plane of the cuttingblock surface of said work support to another locality in which theforward 7 limit of the knife stroke in the plane of the cutting blocksurface of saidgage.

6. In a rounding machine of the type having a feed plate and areciprocating trimming knife adapted to out against a surface on thefeed plate, the combination with an edge gage movable to and from anoperative position between the knife and the feed plate, of means foradjusting the forward limit of movement of the knife to adapt the knifeto cut against a surface on the edge gage when the latter is operativelypositioned.

7 In a rounding machine, the combination with a feed plate and areciprocating trimming knife adapted to cut against the surface of thefeed plate, of an edge gage movable to and from an operative positionbetween the knife and the feed plate. a knife carrier, an actuator forthe knife carrier. and a; connection between the actuator and the knifecarrier, said connection being adjustable to adapt the knife to outagainst a surface of said edge gage when the edge gage is operativelypositioned.

8. In a. rounding machine, the combination with a feed plate and areciprocating trimming knife adapted to out against the surface of thefeed plate, of an edge gage movable toand from an operative positionbetween the knife and the feed plate, a knife carrier, an actuator forthe knife carrier, and an eccentric between the actuator and the knifecarrier, said eccentric being rotatable between two positions in one ofwhich the knife is adapted to out against the feed plate and in theother of which the knife is adapted to out against the edge gage.

9. In a rounding machine, the combination with a feed plate and areciprocating trimming knife adapted to cut against the surface of thefeed plate, of an edge gage movable to and from an operative positionbetween theknife and the feed plate, a knife carrier, an actuator forthe knife carrier, an eccentric connecting the actuator with the knifecarrier, said eccentric being rotatable between two positions in one ofwhich the knife is adapted to cut against the feed plate and in theother of which the knife is adapted to cut against the edge gage, andmeans for securing the eccentric in each of said two positions.

10. In a rounding machine, a reciprocating rounding knife, worksupporting and feeding means including a feed plate having a surfaceadapted to be engaged by the knife in trimming the soles of shoes of thetype wherein the upper is directly secured to the tread sole, an edgegage movable to and from an operative position between the feed plateand the knife for guiding welt shoes by engagement with a bottom memberpreviously trimmed substantially to final shape, an actuator for saidknife, an eccentric con nection between the actuator and the knifeadapted to be turned to shift the forward limit of movement of the knifefrom one po sition in which the knife is adapted to cooperate with thefeed plate while the gage is occupying an inoperative position toanother position in which the knife is adapted to out against a surfaceof the edge gage while the latter is occupying an operative position,and a spring-pressed detent for holding said eccentric in said twopositions. said detent being releasable by rotation of the eccentric.

11. In a rounding machine. a reciprocating rounding knife, a feed platehaving a surface against which the knife is adapted to' cooperate intrimming the soles of shoes of the type wherein the upper is directlysecured to the tread sole, and a movable arm having an edge gage surfaceand a surface for c0- operating with the knife in trimming the soles ofwelt shoes, said arm being movable between two positions in one of whichsaid surface is adapted to co-operate with said knife and in the otherof which said arm is inoperative positioned to permit the knife toco-operate with the feed plate.

12. In a rounding machine, a reciprocating rounding knife, a feed platehaving a surface against which the knife is adapted to co-operate intrimming the soles of shoes of the type wherein the upper is directlysecured to the tread sole, a movable arm having an edge gage surface, acutting block on said arm for co-operating with the knife in trimmingthe soles of welt shoes, said arm be ing movable between two positionsin one of which said cutting block is adapted to co-operate with saidknife and in the other of which said arm is inoperatively positioned topermit the knife to co-operate with the surface of the feed plate.

13. In a machine for trimming the soles of shoes, in combination, acutting block adapt ed for use in trimming the soles of welt shoes, asecond cutting block movable to and from a position wherein its cuttingsurface is disposed in a different plane from that of the first cuttingblock for use in trimming the soles of shoes other than welt shoes, anda movable trimming knife adaptable for cooperation with either of saidcutting blocks to trim a shoe sole by a chopping action.

In testimony whereof I have signed my name to this specification.

ADELORD BOURGEOIS.

